Greetings! My name is Aaron, an iTunes Store Customer Support Advisor. I acknowledge the importance of this matter and I'm very sorry that you did not receive your In-App purchase. Don't worry, I will definitely help you with your concern.
In 7-10 business days, 7.99 USD should be posted to the credit or debit card used to make the purchase.
It is also recommended that you contact the Developer directly for further insight regarding the distribution, availability or functionality of their content. Please visit: